经典3阀4柱系统阀配置图Col B Carrier7 6 8 5 4 3 10 1 2 5 6 1 4 3 2NGA方案1Col COut Sample In9Col A TCD Col DA. B. C. D.2 15 10 10Ft 12% UCW982 on PAW 80/100 mesh Ft 25% DC200 on PAW 80/100 mesh Ft HaysepQ 80/100 mesh Ft Molecular Sieve 13X 45/60 mesh4 5 3612